Sheila Ann Dixon (born December 27, 1953) is an American politician who is the forty-eighth Mayor of Baltimore, Maryland. When former Mayor Martin O'Malley was sworn in as Governor on January 17, 2007, Dixon, a Democrat, became mayor and served out the remaining year of O'Malley's term. In November 2007, she was elected mayor in her own right and is currently serving her first term. She is a former member of the Baltimore City Council, the first African-American female to serve as its president, and Baltimore's first female mayor. She is also Baltimore's third African-American mayor. She governs a more populous city than any other current female mayor in the United States. Dixon endorsed Democrat Barack Obama for president in 2008.

On January 9, 2009, Dixon was indicted on twelve counts, including perjury, theft, and misconduct. The charges stem partly from incidents in which she allegedly misappropriated gift cards intended for the poor.

Dixon was born and was raised in the Ashburton neighborhood of West Baltimore. Her father, Phillip Dixon, Sr., was a car salesman, and her mother, Winona Dixon, was a community activist, active in her church, political causes, and member of local community groups. Dixon attended the Baltimore City public schools and is a graduate of Northwestern High School. She holds a bachelor's degree from Towson University and a master's degree from Johns Hopkins University.